Are all trees male and female?

Trees are mainly divided into three categories: monoecious, dioecious and miscellaneous. Generally speaking, trees are unisexual because they are monoecious. Only dioecious trees, such as poplar, willow, ginkgo and arhat pine, are sexually differentiated.

In dioecious plants, the female tree blooms and the male tree blooms, and only the female tree can bear fruit.

Extended data

The spread of dioecious plants is usually spread by insects that suck nectar, such as bees. It is said that pollen comes from the stamens of the first flower and sticks to bees. When bees fly to another flower, pollen reaches the stigma of this flower. When one of the eggs combines with the ovule, a seed is formed. This is communication.

Monoecious plants also need external force to pollinate when flowers mature. Corn, for example, depends mainly on wind and gravity. Although insects can pollinate, they are few in number. Corn usually blooms in the morning, and it blooms most at 7-9 am. If this rule is mastered, artificial pollination can be carried out at this time to strive for a bumper harvest.

There are obvious gender differences among dioecious plants, such as ginkgo, torreya grandis, Myrica rubra, jujube, papaya, spinach, yam, asparagus, cabbage, Arisaema, Populus alba, willow and so on.

However, their gender stability varies with different plant species. Among them, Ginkgo biloba, Torreya grandis, Populus tomentosa and Salix are stable and controlled by sex chromosomes or genes. Under natural selection, the obvious difference between female plants and male plants was maintained, and there were few other plant types.

China Popular Science Expo-Plants are divided into male and female, and sometimes they play transsexual.

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